#include<stdio.h>
#include<unistd.h>
#include<sys/types.h>
void main(){
	int i;
	asm volatile(
		"mov $0x2,%%eax\n\t"
		"int $0x80\n\t"
		"mov %%eax,%0\n\t"
		:"=m"(i)
		);
}
